linux-kernel - [PATCH 5/7] pinctrl: armada-37xx: propagate error from armada_37xx_pmx_gpio_set

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Message-Id: <20250512-pinctrl-a37xx-fixes-v1-5-d470fb1116a5@gmail.com>
Date: Mon, 12 May 2025 16:22:41 +0200
From: Gabor Juhos <j4g8y7@...il.com>
To: Andrew Lunn <andrew@...n.ch>, 
 Gregory Clement <gregory.clement@...tlin.com>, 
 Sebastian Hesselbarth <sebastian.hesselbarth@...il.com>, 
 Linus Walleij <linus.walleij@...aro.org>, 
 Bartosz Golaszewski <brgl@...ev.pl>
Cc: linux-arm-kernel@...ts.infradead.org, linux-gpio@...r.kernel.org, 
 linux-kernel@...r.kernel.org, Gabor Juhos <j4g8y7@...il.com>, 
 stable@...r.kernel.org, Imre Kaloz <kaloz@...nwrt.org>
Subject: [PATCH 5/7] pinctrl: armada-37xx: propagate error from
 armada_37xx_pmx_gpio_set_direction()

The armada_37xx_gpio_direction_{in,out}put() functions can fail, so
propagate their error values back to the stack instead of silently
ignoring those.

Cc: stable@...r.kernel.org
Fixes: 5715092a458c ("pinctrl: armada-37xx: Add gpio support")
Signed-off-by: Gabor Juhos <j4g8y7@...il.com>
Signed-off-by: Imre Kaloz <kaloz@...nwrt.org>
---
 drivers/pinctrl/mvebu/pinctrl-armada-37xx.c | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/drivers/pinctrl/mvebu/pinctrl-armada-37xx.c b/drivers/pinctrl/mvebu/pinctrl-armada-37xx.c
index 2e88a0399d1a205064b58890db6477e2202bf311..aed0069b085ced5867993e95e0244df7ccda556d 100644
--- a/drivers/pinctrl/mvebu/pinctrl-armada-37xx.c
+++ b/drivers/pinctrl/mvebu/pinctrl-armada-37xx.c
@@ -472,16 +472,17 @@ static int armada_37xx_pmx_gpio_set_direction(struct pinctrl_dev *pctldev,
 {
 	struct armada_37xx_pinctrl *info = pinctrl_dev_get_drvdata(pctldev);
 	struct gpio_chip *chip = range->gc;
+	int ret;
 
 	dev_dbg(info->dev, "gpio_direction for pin %u as %s-%d to %s\n",
 		offset, range->name, offset, input ? "input" : "output");
 
 	if (input)
-		armada_37xx_gpio_direction_input(chip, offset);
+		ret = armada_37xx_gpio_direction_input(chip, offset);
 	else
-		armada_37xx_gpio_direction_output(chip, offset, 0);
+		ret = armada_37xx_gpio_direction_output(chip, offset, 0);
 
-	return 0;
+	return ret;
 }
 
 static int armada_37xx_gpio_request_enable(struct pinctrl_dev *pctldev,

-- 
2.49.0